When I bought the Nemedian bookshelves from the Bazaar, I thought it would be a huge pain in the peach to align them properly, and I was ready to sacrifice an entire afternoon to the task. To my surprise, the bookshelves snap to the wall, making it truly effortless to line them up.
I kinda wish that every piece of furniture and work benches came with this feature. And not just snapping them to a predetermined location on the floor tile, but allowing a certain degree of minor adjustment so you can nudge a little bit to any directions. Kind of like how they do it in The Sims franchise. And you can toggle this function on and off with an assigned key.
It would make life so much easier.